Explosion characteristics for Li-ion battery electrolytes at elevated temperatures

Li-Ion Cell Operation at Low Temperatures

XeF laser characteristics studied at elevated temperatures

The electron-beam-pumped XeF laser operating on the B-X and C-A transitions shows a strong temperature dependence. Fluorescence, gain, and laser output measurements in Ar/Xe/NF3 and Ne/Xe/NF3 mixtures are reported for temperatures from 300 to 600 K. Elevated temperatures cause stronger mixing between the Band C states as well as among the vibrational levels within the B state. Together with the...

Separators for Li-Ion and Li-Metal Battery Including Ionic Liquid Based Electrolytes Based on the TFSI− and FSI− Anions

The characterization of separators for Li-ion or Li-metal batteries incorporating hydrophobic ionic liquid electrolytes is reported herein. Ionic liquids made of N-butyl-N-methylpyrrolidinium (PYR14+) or N-methoxyethyl-N-methylpyrrolidinium (PYR12O1+), paired with bis(trifluoromethanesulfonyl)imide (TFSI-) or bis(fluorosulfonyl)imide (FSI-) anions, were tested in combination with separators hav...

Lithium Ion Battery Fire and Explosion

With the extensive applications of lithium ion batteries, many batteries fire and explosion accidents were reported. Base on the combustion triangle theory, the combustion triangle contributions of lithium ion battery were analysed. By using C80 micro calorimeter, the thermal behavior studies on the materials show that the flammable electrolyte, oxygen generated by charged cathode and anode dec...

Recent progress in theoretical and computational investigations of Li-ion battery materials and electrolytes.

There is an increasing worldwide demand for high energy density batteries. In recent years, rechargeable Li-ion batteries have become important power sources, and their performance gains are driving the adoption of electrical vehicles (EV) as viable alternatives to combustion engines. The exploration of new Li-ion battery materials is an important focus of materials scientists and computational...